where are you located? there are plenty of shrooms and zoas in the gym tank. i can cut you some.
what are the average parameters? i have had luck with a lot of corals without steady calcium and alk levels. what are the corals you are interested in?
btw, for the softies and stuff from the gym tank, you would need to pay for shipping, and insulated box, plus a heat pack. all tolled, an average of 35 bucks or so for that stuff. local pickups might be cheaper. have you googled local reef clubs in the area?